Which port corresponds to the Gopher service?

Which port corresponds to the Gopher service?

• A. 53
• B. 7
• C. 80
• D. 70

Answer: (D)

Understanding port numbers means recognizing that many common services have fixed, standardized ports assigned by IANA. This labeling lets clients reach the right service without extra negotiation. Gopher is a legacy protocol that has its own designated port, separate from the ports used by other services shown in the options. The DNS service, the Echo service, and the web service each have their own assigned ports, making them distinct targets for connection. The Gopher service uses its own assigned port, which is why that option is the correct choice.

Understanding port numbers means recognizing that many common services have fixed, standardized ports assigned by IANA. This labeling lets clients reach the right service without extra negotiation. Gopher is a legacy protocol that has its own designated port, separate from the ports used by other services shown in the options. The DNS service, the Echo service, and the web service each have their own assigned ports, making them distinct targets for connection. The Gopher service uses its own assigned port, which is why that option is the correct choice.